Improvement in refining turpentine



UN ED STATES PATENT ()1nncn..

NORRIS L. MARTIN,

or new YORK, N. Y.

' IMPROVEMENT m REFINING TURPENTINE.

Specification forming part of Letters Patent No. 5,004, dated March 3,1847.

To alliwhom it may concern:

Be it known that I, Nonnrs L. MARTIN, a

native Ufthe city of New York, at present a resident of the city Brooklyn and State of.

New York, have invented a new and useful process to refine pine-oil or spirits of tnrpen-- tine by means of combining with the sam'e'a strong solution of potashes and water, not .to weigh less than twelve pounds to the gallon, combined by passing the samethrough a suecession of finely-perforated.tin or wire strainers, the holes in said strainers to admit a cornwon-size pin to the head, where it stops.

Smaller holes will answer as well. After pass ing the alkali-and spirits of turpentine or pineoil, when united in the proportion of. one gill of alkali toa gallon of pine-oil or spirits of turpentine, through a successionof strainers until- Well combined, at least twenty times through a single strainer, either by'pnmp or hand, the alkali combines withtbepartieles of turpentine or rosin that are found in the spirits of turpentine or pine-oil during the distilling process. After the substances menby adding to it about four times the quantity mixed and leave them toseparate. oilhas separated and its impurities combined a further'and finishing process requires to add to each gallon. of oil, when separated, half a pint of water and pass them through the strainers to more efieotually refine the oil. After passing the oil and water, asdireeted, with the alkali and oil, through the strainers, leave them to separate, and the refined-spirits of turpentine or pine-oil is prepared for use.

I claimthe use of alkali and water, substantially in the manner above set forth.

NORRIS L. MARTIN.

Witnesses:

A. H. OSBORN, I. H. PATERSON.

tioned have combinedfweaken the solution of water that the oil eontainsof alkali, and f" put them through the strainers until well When the;

with the alkali after its strength is reduced,

Refining spirits of turpentine or pine-oil by I 

